kern/51984: tcpdump panics kernel for IEEE802_11

[mlelstv%serpens.de@localhost]

>Number:         51984
>Category:       kern
>Synopsis:       tcpdump panics kernel for IEEE802_11
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Feb 19 05:30:00 +0000 2017
>Originator:     Michael van Elst
>Release:        NetBSD 7.99.59
>Organization:
	
>Environment:
	
	
System: NetBSD tazz 7.99.59 NetBSD 7.99.59 (TAZZ) #7: Sun Feb 12 16:14:14 CET 2017 mlelstv@gossam:/home/netbsd-current/obj.amd64/home/netbsd-current/src/sys/arch/amd64/compile/TAZZ amd64
Architecture: x86_64
Machine: amd64
>Description:
tcpdump -n -i iwn0 -y IEEE802_11

panics the system immediately with:

panic: kernel diagnostic assertion "new->ple_next == NULL" failed: file "/home/n
etbsd-current/src/sys/sys/pslist.h", line 118
fatal breakpoint trap in supervisor mode

Backtrace:

db{0}> breakpoint() at netbsd:breakpoint+0x5
vpanic() at netbsd:vpanic+0x140
ch_voltag_convert_in() at netbsd:ch_voltag_convert_in
bpf_attachd() at netbsd:bpf_attachd+0x16f
bpf_ioctl() at netbsd:bpf_ioctl+0x6e3
sys_ioctl() at netbsd:sys_ioctl+0x101
syscall() at netbsd:syscall+0x1e7
--- syscall (number 54) ---


>How-To-Repeat:
tcpdump -n -i iwn0 -y IEEE802_11

>Fix:
	

>Unformatted: